Audi A6 C7 A7 4G Coolant Hose Pipe Line 3.0 TDI CVUA 4G0819374L

Audi A6 C7 A7 4G Water Hose Pipe Tube 3.0 TDI CVUA is an original cooling system component from the Cooling System Hoses and Pipes group, designed for use in Audi models with the 3.0 TDI CVUA engine. The used OEM part ensures a factory fit, stable coolant flow, and predictable performance of the entire system under everyday operating conditions.

Specifications and technical data

• SKU: 4G0819374L
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0819374L
• Substitutable numbers: 4G0819374L, 4G0 819 374 L
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The presented water hose is responsible for the controlled flow of coolant between the cooling system components in the 3.0 TDI CVUA unit. The correctly selected geometry and inner diameter of the hose limit pressure drops, which promotes stable operation of the coolant pump and maintains optimal engine operating temperature.

Thanks to its construction in accordance with Audi standards, the hose works with factory spigots and connectors, minimizing the risk of leaks, overheating, and local flow turbulence. This is particularly important in modern diesel engines, where the cooling system operates under increased thermal load.

Benefits of Using an Original Audi Hose

Using an original water hose in an Audi A6 C7 or A7 4G with a 3.0 TDI CVUA engine translates into a number of practical benefits:

• factory fit to spigots and mounts in the engine bay,
• maintenance of the coolant flow characteristics designed by the manufacturer,
• reduction of leak risk resulting from imprecise fit of aftermarket replacements,
• compatibility with other Audi cooling system components.

For the user, this means more predictable engine operation, stable operating temperature, and a lower risk of breakdowns related to overheating. The original Audi water hose is particularly recommended for repairs where maintaining factory specifications is crucial.

Assembly and Operational Characteristics

The hose is designed as an OEM component, which facilitates installation in dedicated Audi models. The appropriately profiled hose routing avoids unfavorable kinks, rubbing against other components, and excessive stress during engine operation.

In practice, this translates to:

• more comfortable installation without the need for modifications,
• stable positioning of the hose in the engine bay,
• reduced risk of mechanical damage during operation.

The used nature of the part allows for economical repair while maintaining original manufacturer specifications, which is an attractive solution for discerning users seeking a reasonable compromise between cost and quality.

Technical Support and Further Information on Cooling

High ambient temperatures particularly stress the cooling system, so the selection of efficient hoses, radiators, and fans directly impacts the durability of the engine. If you want to better understand how summer conditions affect the entire cooling system and how to reasonably use used parts, check out the guide Summer heat vs. cooling system – used radiators and fans as a way to economical operation.

Audi Cooling System Expansion

If you are planning a comprehensive repair or modernization of the cooling system area in your Audi and need other parts from the same group, such as additional water hoses, flexible hoses, or rigid pipes for coolant, check the available parts in the Audi Cooling System Hoses and Pipes category.

Summary

The Audi A6 C7 A7 4G Water Hose Pipe Tube 3.0 TDI CVUA is a practical solution for users who want to restore proper coolant circulation while maintaining manufacturer standards. A used, original part from the Cooling System Hoses and Pipes group allows for a technically correct yet economical repair, supporting the safe and stable operation of the 3.0 TDI engine in everyday use.